Improvement in double-acting pumps



r ZSheets-Sheetl. J. D. CARR. DOUBLE ACTING PUMP. N ,178 835 Patented June 20.1576.

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J'. D. CARR.

DOUBLE ACTING PUMP;

Patented 'J'une 20, 1876.

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N- PETERS FHOTD-LITNOGRAPHE UNITED STATES PATENT QEEIGE.

JAMEs 1). oAEE, oFsAUK oENTEE, MINNEsoTA- ,IM PROVEMENT IN DOUBLE-ACTING PUMPS.

Specification forming part of Letters Patent No. [78,835. dated J one 20, 1876; application filed May 22, 1876.

ing drawing, and to the letters of reference.

marked thereon, which form a part of this specification.

My invention relates to improvements in double-acting pumps, and has for its object to operate the buckets by connecting the piston or operating-rods to the under side thereof, and to provide means whereby any unequal movement, or jarring, or irregular action is prevented, and consists in the construction, arrangement, and combination of the several parts, as hereinafter fully explained.

In the drawings, Figure l is afront, and Fig. 2 a side, elevation, and Fig. 3 a detail view, of a part of a pump constructed according to my invention.

a a are the barrels or pump-tubes, which are secured together by ordinary means, and have their upper ends covered by the tight cap a which is so formed as to give space for the ac tion of the upper valves, and for the passage of the water to the dischargepipe a have the guide-slots a a formed in the front and rear sides thereof, and extending from the lower ends upward a sufficient distance to admit of the necessary play or stroke of the supporting-frame of the buckets, as. hereinafter explained. b is a sliding frame, which supports and operates the buckets. It is composed v of the horizontalrod or bar b which passes through the guide-slots a a and of the vertical rods or bars 1) b the lower ends of which attach to the ends of the rod 11 and the other ends extend upward outside the barrel and above the cap a and are curved inward and joined together by the bolt or pin b c-is the bucket. It isprovided with the under-side arms 0 0 which extend downward close to'the sideof the barrel and attach to the rod 1) of the frame b. These arms have a length. equal to They.

barrels, and has its axis suitably journaled in bearings on the cap a and discharge-pipe 0, It is so arranged that its upper side will be slightly below the pin b of either frame when the latter is depressed to its lowest point. e is a flexible band or chain, which unites the tops of the frame b b, and passes under the friction-pulley d, by which it is held taut. By

this device the movements of the frames b b are made perfectly reciprocal, and are preserved at all times in a vertical line, and by which I am enabled to employ rods 0 made in sections linked together, or chains or ropes for connecting the frames 1) b with the operating devices above the well. f is the lever for operating the pump. It is provided with the round or pulley head f over which is passed and to which is made fast the flexible draw band or chain f which connects the upper ends of the rods or chains 6 0 I Figures 4 and 5 represent the manner of arranging and applying my improvements for carrying the water to any desired distance away from the well. In this case I place the pulley f at the desired distance from the well, and employ an intermediate double-width pulley, f which is secured over the mouth of the well. Over this double-width pulley is passed the two flexible bands f f the first of which connects with the ms e e, and the second with the rods 0 0 which connect with the draw-band f The several parts are represented as secured to the under side of the covering or platform 9, which is placed over the well, but it will be readily understood that the pulley f may be placed inside the house, and connected by suitable rods with the pulley f over the well outside the house. Instead of having the pulley f secured under, it can be easily rigged above the platform g, and a second double-width pulley attached where the pulley f is now secured, the two being' connected by the hecessary rods and bands.

In the "operation of my device, the power being appliedirom the circumference of the pulleys and the extremities of the horizontal diameter or radii, there will be i no "ariation in the degree, nor will there be any loss of force, as is the case Where rocking-arms are employed. It will be seen that the rods 8 0 move in the same line, and do not oscillate from side to side, as when they are operated by oscillating or rocking arms. It will he further seen that by my device a-ll jarring and irregular movements are avoided.

Having described my invention, what I claim, and desire to secure by Letters Patent, is

1. The combination, with the frames b b, of the flexible band or chain a, and pulley (1, se-

cured to the top of the barrels a a, substantially as specified.

2. The combination, with the frames I) I), rods or chains 6 0 and lever f, provided with the round pulley-head f, of the pulley d, and flexible bands or chains 6 and f as and for the purpose set forth.

In testimony that I claim the foregoing as my own, I hereto affix my signature in presence of two witnesses.

JAMES D. CARR. Witnesses:

L. KELLE, A. BARTO. 

